21000427878

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{85367593}}^1$

素因数の和:85367639

約数の個数: 16

約数和(自身を含む): 43025267376

約数和(自身を除く): 22024839498

約数列:

[1, 2, 3, 6, 41, 82, 123, 246, 85367593, 170735186, 256102779, 512205558, 3500071313, 7000142626, 10500213939, 21000427878]

約数ペア:

[(1, 21000427878), (2, 10500213939), (3, 7000142626), (6, 3500071313), (41, 512205558), (82, 256102779), (123, 170735186), (246, 85367593)]